Mixing RAM?

[VirusType2]

Hey, I'm trying to upgrade some RAM for Mom

she's only got 256MB and she has 1 free slot

she's got samsung PC2 - 3200U - 333

I've got 3 old sticks of old RAM laying around, and I was hoping that I could improve her situation.

She's running XP and mostly does word processing/email/internet browsing. No gaming

I've got 3 sticks here and I don't know which one would be best. I can't even tell how much RAM all of them have

1) PC100-322 - 620 ??unknown RAM - probably 128?
EDIT - http://www.memoryten.com/002603.htm

128MB 168p PC100 CL3 16c 8x8 SDRAM DIMM, Mitsubishi, ANB, MH16S64AAMD-8
Description:
MH16S64AAMD-8 ANB 128MB 168p PC100 CL3 16c 8x8 SDRAM DIMM, Mitsubishi

2) 16x64 100 - 222 128 MB
Edit -
DP100-064162AU2


3) PC133 128MB


is this going to help her for the tasks she does? More ram should make things faster - less caching

But I'm aware these sticks are not as fast, so will that be a big difference?


Any advice?

(the Computer is a Pentium 4 - about 3 years old)


EDIT - NEVERMIND

Does it matter which memory type I use between SDRAM, DDR, DDR2 and DDR3 - why not just use the fastest? The computer usually only supports one of these memory types because each are somewhat different in physical construction and electrical characteristics, and therefore require their own type of memory slot in which the memory module is inserted. If the computer does happen to support more than one type, the actual memory used must be all of the same type.

 

[Asus]

Hehe
You won't be able to fit them in since they are different types. Oh well.

I just threw away some old parts and came across some SIMM memory sticks. Haven't seen those forever.

 

[VirusType2]

They have computer/parts recycling here, you should look into that

thanks for your help